Related Experiment Video
Updated: Feb 28, 2026

Scanning Electron Microscopy of Macerated Tissue to Visualize the Extracellular Matrix
Published on: June 14, 2016
Histologic Sequelae of Apical Hypertrophic Cardiomyopathy: Dystrophic Calcification
Shahryar G Saba1,2, John N Makaryus1, Navid Rahmani2
1Multimodality Cardiovascular Imaging Laboratory, Department of Cardiology, Hofstra Northwell School of Medicine, Manhasset, NY, USA.
Insights
Cardiac computed tomography (CT) reveals apical hypertrophic cardiomyopathy with calcification. This suggests chronic injury, not atherosclerotic coronary artery disease, causes apical dysfunction, highlighting CT
Area of Science:
- Cardiology
- Medical Imaging
- Cardiovascular Disease
Background:
- Apical hypertrophic cardiomyopathy is a form of heart muscle disease.
- Dystrophic calcification can occur in injured myocardial tissue.
- Distinguishing causes of apical myocardial dysfunction is clinically important.
Purpose of the Study:
- To present cardiac computed tomography (CT) findings in apical hypertrophic cardiomyopathy.
- To investigate the etiology of apical myocardial dysfunction in this condition.
- To evaluate the role of CT in visualizing myocardial calcification.
Main Methods:
- Cardiac computed tomography (CT) was used to assess left ventricular apex morphology.
- Coronary CT angiography was performed to evaluate epicardial coronary arteries.
- Analysis focused on identifying hypertrophic cardiomyopathy, calcification, and coronary artery disease.
Main Results:
- Cardiac CT demonstrated apical hypertrophic cardiomyopathy with dystrophic calcification of the left ventricular apex.
- Coronary CT angiography showed no significant epicardial coronary artery disease.
- Findings suggest increased wall tension and reduced microvascular perfusion contribute to apical dysfunction.
Conclusions:
- Cardiac CT is valuable for diagnosing apical hypertrophic cardiomyopathy and associated calcification.
- The findings support non-atherosclerotic mechanisms for apical myocardial injury.
- CT imaging is effective for visualizing calcium deposition in chronically injured myocardium.
Abstract:
We present cardiac computed tomography (CT) findings demonstrating apical hypertrophic cardiomyopathy with dystrophic calcification of the left ventricular apex. The absence of significant epicardial coronary artery disease demonstrated by coronary CT angiography suggests that increased wall tension and decreased microvascular perfusion over time account for the dyskinetic apical myocardium, rather than myocardial infarction secondary to atherosclerotic plaque rupture. These observations support CT as the imaging modality of choice to visualize the deposition of calcium in injured myocardial tissue, a recognized occurrence in chronically infarcted myocardium.
More Related Videos
Related Concept Videos
Cardiomyopathy III: Hypertrophic Cardiomyopathy
Cardiomyopathy II: Dilated Cardiomyopathy
Heart Failure II: Pathophysiology
Cardiomyopathy I: Introduction and Classification
Rheumatic Heart Disease I: Introduction
Myocarditis I: Introduction

